About the Authors

William R. Swindell

wswindell@genetics.med.harvard.edu

Affiliation Department of Genetics, Harvard Medical School, Boston, Massachusetts, United States of America

Andrew Johnston

Affiliation Department of Dermatology, University of Michigan School of Medicine, Ann Arbor, Michigan, United States of America

Johann E. Gudjonsson

Affiliation Department of Dermatology, University of Michigan School of Medicine, Ann Arbor, Michigan, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Analyzed the data: WRS. Wrote the paper: WRS AJ JG.